<template>
  <div>
    <div class="user-info-head" @click="editCropper()">
      <img :src="avatar ? `${avatar}` : avaterImg" class="img-circle img-lg" title="点击上传头像" alt="" />
    </div>
    <x-dialog :title="title" :show.sync="open" v-if="open" width="60%" :footShow="false" @onClosed="closeDialog">
      <el-row>
        <el-col :md="12" :style="{ height: '350px' }" :xs="24">
          <vue-cropper
            v-if="visible"
            ref="cropper"
            :auto-crop="options.autoCrop"
            :auto-crop-height="options.autoCropHeight"
            :auto-crop-width="options.autoCropWidth"
            :fixed-box="options.fixedBox"
            :img="options.img"
            :info="true"
            @realTime="realTime"
          />
        </el-col>
        <el-col :md="12" :style="{ height: '350px' }" :xs="24">
          <div
            :style="{ height: options.autoCropHeight + 'px', width: options.autoCropWidth + 'px' }"
            class="avatar-upload-preview"
          >
            <img
              :src="previews.url ? previews.url : avaterImg"
              :style="previews.url ? previews.img : { width: '100%', height: '100%' }"
              alt=""
            />
          </div>
        </el-col>
      </el-row>
      <br />
      <el-row>
        <el-col :lg="2" :md="2">
          <el-upload :before-upload="beforeUpload" :http-request="requestUpload" :show-file-list="false" action="#">
            <el-button size="small">
              选择
              <i class="el-icon-upload el-icon--right" />
            </el-button>
          </el-upload>
        </el-col>
        <el-col :lg="{ span: 1, offset: 2 }" :md="2">
          <el-button icon="el-icon-plus" size="small" @click="changeScale(1)" />
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :md="2">
          <el-button icon="el-icon-minus" size="small" @click="changeScale(-1)" />
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :md="2">
          <el-button icon="el-icon-refresh-left" size="small" @click="rotateLeft()" />
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :md="2">
          <el-button icon="el-icon-refresh-right" size="small" @click="rotateRight()" />
        </el-col>
        <el-col :lg="{ span: 2, offset: 6 }" :md="2">
          <el-button size="small" type="primary" @click="uploadImg()"> 提 交 </el-button>
        </el-col>
      </el-row>
    </x-dialog>
  </div>
</template>

<script>
  import { VueCropper } from 'vue-cropper'
  import { throttle } from '@package/utils'
  import { mapActions, mapState } from 'pinia'
  import avaterImg from '@/common/assets/images/defaultavater.png'
  import { pinias } from '@/common/pinia'
  import { EnumApiCode } from '../../../../../../globalEnum.js'
  import { apiPutUserAvatar, apiPostUpload } from '../api'

  const { login } = pinias
  export default {
    components: { VueCropper },
    props: {
      user: {
        type: Object
      }
    },
    data() {
      return {
        avaterImg,
        // 是否显示弹出层
        open: false,
        // 是否显示cropper
        visible: false,
        // 弹出层标题
        title: '修改头像',
        options: {
          img: '', // 裁剪图片的地址
          autoCrop: true, // 是否默认生成截图框
          autoCropWidth: 200, // 默认生成截图框宽度
          autoCropHeight: 200, // 默认生成截图框高度
          fixedBox: true // 固定截图框大小 不允许改变
        },
        previews: {},
        fileName: ''
      }
    },
    computed: {
      ...mapState(login, ['avatar'])
    },
    watch: {
      user: {
        handler(val) {
          if (this.user?.avatarUrl) {
            this.options.img = this.avatar
          }
        },
        immediate: true,
        deep: true
      }
    },
    methods: {
      ...mapActions(login, ['setAvatar']),
      // 编辑头像
      editCropper() {
        this.options.img = this.avatar
        this.open = true
        this.visible = true
      },
      // 打开弹出层结束时的回调
      modalOpened() {},
      // 覆盖默认的上传行为
      requestUpload() {},
      // 向左旋转
      rotateLeft() {
        this.$refs.cropper.rotateLeft()
      },
      // 向右旋转
      rotateRight() {
        this.$refs.cropper.rotateRight()
      },
      // 图片缩放
      changeScale(num = 1) {
        this.$refs.cropper.changeScale(num)
      },
      // 上传预处理
      beforeUpload(file) {
        if (file.type.indexOf('image/') === -1) {
          this.$modal.msgError('文件格式错误，请上传图片类型,如：JPG，PNG后缀的文件。')
        } else {
          const reader = new FileReader()
          reader.readAsDataURL(file)
          reader.onload = () => {
            this.options.img = reader.result
            this.fileName = file.name
          }
        }
      },
      // 上传图片
      uploadImg: throttle(function () {
        this.$refs.cropper.getCropBlob((data) => {
          const formData = new FormData()
          formData.append('file', data, this.fileName || 'user_avatar.png')
          formData.append('businessCode', 2000)
          formData.append('fileName', this.fileName)
          apiPostUpload(formData).then(({ code, data }) => {
            if (code === EnumApiCode.Success) {
              apiPutUserAvatar({ filePath: data.filePath }).then(({ code, msg }) => {
                if (code === EnumApiCode.Success) {
                  const result = data?.filePath.split('##')[0] ?? ''
                  this.setAvatar(result)
                  this.$message.success('编辑成功')
                  this.visible = false
                  this.open = false
                } else {
                  this.$message.error(msg)
                }
              })
            }
          })
        })
      }, 1000),
      // 实时预览
      realTime(data) {
        this.previews = data
      },
      // 关闭窗口
      closeDialog() {
        this.options.img = this.avatar
        this.open = false
        this.visible = false
      }
    }
  }
</script>
<style lang="scss" scoped>
  .user-info-head {
    position: relative;
    display: inline-block;
    width: 120px;
    height: 120px;

    img {
      width: 100%;
      &.img-circle {
        border-radius: 50%;
      }
    }
  }

  .user-info-head:hover::after {
    font-size: 24px;
    font-style: normal;
    line-height: 110px;
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    content: '+';
    cursor: pointer;
    text-align: center;
    color: #eee;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.5);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  .avatar-upload-preview {
    position: absolute;
    top: 50%;
    transform: translate(50%, -50%);
    width: 200px;
    height: 200px;
    border-radius: 50%;
    box-shadow: 0 0 4px #ccc;
    overflow: hidden;
  }
</style>
